Troubleshooting and fault elimination 9
51
Lenze ¯ BA 33.0005 ¯ 5.0
RemedyCauseFault
Vibrations
Insufficiently balanced coupling
elements or machine
Rebalance
Inadequate alignment of drive train Realign machine unit, check foundation if necessary
Loose fixing screws Check and tighten screw connections
Running noises
Foreign particles inside the motor
Repair by manufacturer if necessary
Bearing damage
Surface temperature > 140°C Overload of the drive
Check load and, if necessary, reduce by means of longer ramp−up
times
Check winding temperature
Heat dissipation impeded by deposits Clean surface and cooling fins of the drives
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